Describe data structures used during passes of assembler, Computer Engineering

Assignment Help:

Describe Data structures used during passes of assembler and their use.

During passes of assembler, the Data structures define as:

Pass 1 data base

  • Input source program
  • A location counters (LC)
  • A machine-operation table (i.e. MOT), which indicates the symbolic mnemonic for each instruction and instruction's length.
  • Pseudo- operation table
  • Symbol table
  • Literal table
  • Copy of the input to be used later through pass 2

Pass 2

  • Coping of source program input to pass 1
  • Location counter (LC)
  • MOT
  • POT
  • ST
  • Base table which indicates that registers are currently identified as base register.
  • A work space, INST, which used to hold instruction as its different parts are being assembled together
  • Punch line, utilized to produce a printed listing.
  • Punch card used for converting assembled instructions in the format required by the loader.

Related Discussions:- Describe data structures used during passes of assembler

Recursive procedures are implemented, Recursive procedures are implemented ...

Recursive procedures are implemented by using Recursive procedures are executed by using stacks due to stacks are LIFO data structure and we require this feature to store retur

Can an rc circuit be used as clock source for 8085, Yes, it can be used, if...

Yes, it can be used, if an accurate clock frequency is not needed. Also, the component cost is low contrast to LC or Crystal.

How atoms differ from the arrangement of atoms in a liquid, Q. How does the...

Q. How does the preparation of atoms in mainly solids differ from the arrangement of atoms in a liquid? Answer:- The arrangement of atoms in solids are diverse from those

How to define a filename in dos, Q. How to define a Filename in DOS? Ea...

Q. How to define a Filename in DOS? Each file is given a name so that it can be referred to later. This name is termed as Filename. The filename in DOS can be up to eight alpha

Java, mine sweeper algorithm.

mine sweeper algorithm.

Write the game using writing functions, The year is 2199. For many generati...

The year is 2199. For many generations, the robotic Cyleth have faithfully served humanity. However, under the direction of the computerized superintelligence Skyweb, they have tur

What is basic working of modem, Q. What is basic working of Modem? A mo...

Q. What is basic working of Modem? A modem (modulator/demodulator) is an electronic device that takes digital data as a serial stream of bits and produces a modulated carrier s

Rapid appllication development, Explain clearly the four stages in the Rapi...

Explain clearly the four stages in the Rapid Application Development

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd